Starting at $53
Starting at $181
Starting at $57
Starting at $31
Starting at $54
Helping travelers to find the best flight offers
A direct flight is the easiest way to get to your destination. The following airlines operate non-stop flights from San Jose to Ontario:
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We keep tight track on airlines' pre-holidays sales and other special offers occurences all the time to let you save maximum amount of funds while traveling to your family or just going out on vacation.
Looking for cheap flights from San Jose to Ontario? Look no further! Our air ticket search website offers the best deals and discounts on airfare for this route. Whether you're planning a quick business trip or a weekend getaway, we've got you covered. Fly hassle-free from San Jose (United States) to Ontario (United States) without breaking the bank. With our user-friendly search engine, finding the most affordable flights has never been easier. Explore a variety of flight options from top airlines and choose the one that suits your budget and schedule. Experience convenience and affordability when booking your air tickets with us. Don't miss out on incredible savings - start planning your trip from San Jose to Ontario today! Simply enter your travel dates, and let us do the rest. Book now and make your travel dreams a reality.
The San Jose — Ontario route is served by a wide range of airlines: 5 in total, including Southwest Airlines, United Airlines, Alaska Airlines, Frontier Airlines, and American Airlines. Competition among carriers gives passengers the opportunity to find tickets at attractive fares — with prices starting from $31. Our service helps compare all available offers within seconds and choose the most convenient option. You can filter flights by price, departure time, or baggage rules to make your trip as comfortable as possible. With so many airlines, there’s always a chance to catch special promotions and save.
Starting at $53
Starting at $181
Starting at $57
Starting at $31
Starting at $54
Looking to fly from San Jose, United States to Ontario, United States? You're in luck! Direct flights are available on our air ticket search website. With quick and convenient travel, direct flights eliminate the hassle of layovers and allow you to reach your destination faster. Whether you're traveling for business or pleasure, this non-stop route ensures a seamless journey from San Jose to Ontario. However, in the rare case that direct flights are not available, don't fret! There are alternative routes with transfers that can still get you to your destination. Connecting flights via major airports such as Los Angeles or San Francisco provide viable options to reach Ontario from San Jose. Although these routes may involve a layover, they offer flexibility and can still get you to your desired location efficiently. Explore our air ticket search website to find the best options for your travel needs and fly hassle-free from San Jose to Ontario!
San Francisco — Los Angeles
02/15/2026
Departure
Direct flight
WN3505
Starting at $53
San Francisco — Los Angeles
12/21/2025
Departure
Direct flight
UA2179
Starting at $293
San Francisco — Los Angeles
12/31/2025
Departure
Direct flight
UA325
Starting at $205
San Francisco — Los Angeles
01/01/2026
Departure
Direct flight
AS3440
Starting at $120
San Francisco — Los Angeles
01/12/2026
Departure
Direct flight
AS3484
Starting at $117
San Francisco — Los Angeles
01/14/2026
Departure
Direct flight
AS3249
Starting at $57
San Francisco — Ontario
12/16/2025
Departure
Direct flight
UA448
Starting at $181
Unable to find information about the schedule of direct flights from
We couldn't find any special offers for flights from San Jose to Ontario
The cheapest one-way flight from San Jose to Ontario departs on 01/14/2026, is operated by Frontier Airlines and costs $31
The cheapest roundtrip flight from San Jose to Ontario departs on 12/14/2025, is operated by Alaska Airlines and costs $206
Fastest flight from San Jose to Ontario takes 1h 20m
There are direct flights on this route 5 days a week: Su, Mo, Tu, We, and Fr
The distance between San Jose and Ontario is 530km (329 miles). There are 33 direct flights from San Jose to Ontario. San Jose and Ontario are in the same time zone. Flights from San Jose begin at 6:35 AM. The latest flight from San Jose departs at 9:55 PM
The cheapest flight ticket from San Jose to Ontario according to data for the last 48 hours costs $31
Often the best time to buy tickets from San Jose to Ontario is 2 months before departure.
Based on statistics over the past years, the lowest prices for flights from San Jose to Ontario can be found flying in these months: January, February, May.
The fastest flights from San Jose to Ontario start from 1 hour 20 minutes in the air.
The following airlines operate direct flights on the route San Jose — Ontario: Southwest Airlines, United Airlines, Alaska Airlines
The minimum one-way ticket price from San Jose to Ontario is $110 (January 2026), while the maximum is $173 (March 2026). On average, a ticket costs $146–$152.